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WorksheetsCore Java Quiz
Total questions: 10
Worksheet time: 5mins
what is size of int in Java?
2 bytes
4 bytes
6 bytes
8 bytes
what is size of long int in Java?
2 bytes
4 bytes
6 bytes
8 bytes
what is size of char in Java?
2 bytes
4 bytes
6 bytes
1 bytes
String in a Java is primitive (built-in) data type or class?
data type
class
What size will be required to store value 324.98 in Java?
2
3
6
8
Which of these can not be used for a variable name in Java and any other programming languages?
identifier
keyword
identifier & keyword
none of the mentioned
Import java.lang.*;
class Rectangle
{
int l,b,a;
a=l*b;
void fun()
{
l=10;
b=20;
system.out.println("Area = ", a);
}
}
Identify errors in above program segment.
Error in import line and Error in println line both
Error in import line
Error in println line
No error at all
Which of the following rule is INCORRECT in Java?
Class should not be end with semi-colon
Constants to be written in CAPITAL letters
main() should be inside the class
We can write Java program without using class
Which of these access specifiers must be used for main() method in Java?
private
public
protected
none of the mentioned
Which of the following is a valid declaration of an object of class Box?
Box obj = new Box();
Box obj = new Box;
obj = new Box();
new Box obj;
